Varnish is a web accelerator tool, which has been gaining a lot in popularity lately, as it can increase the loading speed of any website, at times even by one hundred percent, depending on the content. This tool is sometimes called an HTTP reverse proxy too and is used to reduce the overall load on the physical server and to accelerate the access speed for the site visitors. Every time a visitor opens a page on a specific site, the browser request is handled by the web server and the requested information is delivered as a response. If Varnish is activated, it caches the web pages that the site visitor opens and if any of them is loaded again, it’s fetched by Varnish and not by the server directly. The improvement in the overall performance is due to the fact that the accelerator handles the browser requests significantly quicker than any web server, which leads to much faster browsing speeds for the visitors. If any data is modified meanwhile, the cached webpages will also be updated the next time somebody tries to access them.
Varnish in Shared Hosting
In case you host your websites under a shared hosting account with us, you will be able to add Varnish with a couple of clicks through your Control Panel. The caching platform is offered as an optional upgrade with all our hosting packages and you can choose the number of the sites that will use it and the maximum storage space that will be used for the cached data. The two features that can be upgraded in the Upgrades section of the Control Panel are the amount of memory and the number of instances and they’re not tied directly to each other, so you can decide if you need lots of memory for one large website or less memory for multiple smaller ones. You can unleash the full potential of the Varnish platform in case the sites use a dedicated IP address. Using the Control Panel, you can effortlessly start/restart/stop an instance, clear the cached files individually for each website that uses Varnish or see a detailed system log.